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CSS Bootstrap 4 Basics (Retired) Using Bootstrap Components Using ScrollSpy to Highlight Nav Links

Posted by Phil Ellett
Phil Ellett
20,514 Points

Explain the use of a period in the data-target element

I really believe you should have explained the use of periods (full stops in the UK) and hashes in the data-target element.

Specifically that an entry prefixed with period relates to a class and an entry prefixed with a hash relates to an id. Explaining why navbar needs to be prefixed by a period rather than just stating that it won't work if you omit it .. is missing a trick and not helping students learn how element target works.

Leigh Maher
Leigh Maher
21,830 Points
Leigh Maher
Leigh Maher
21,830 Points

Hi Phil, the period is just indicating that your targeting a class name instead of an id name. If it was an id you would use # instead.

1 Answer

Adam Fields
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Adam Fields
Full Stack JavaScript Techdegree Graduate 37,838 Points
Adam Fields
.a{fill-rule:evenodd;}techdegree seal-36
Adam Fields
Full Stack JavaScript Techdegree Graduate 37,838 Points

This class is intended for students who have ideally completed many other CSS courses. By now, understanding the difference between an ID and a Class should be second nature.